Question
An electric heater is rated at 500 W. (a) How much energy is delivered to the heater in half an hour? (b)The heater is being used to heat a room containing 50.0 kg of air. If the specific heat of air is 1.10 kJ/kg.°C, 1100J/kg.°C, and 50% of the thermal energy heats the air in the room, what is the change in air tempe
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